| 释义 |
DEFINITIVE EXAMPLES 权威例句〔cortex〕Botany The region of tissue in a root or stem lying between the epidermis and the vascular tissue.【植物学】 皮层:位于表皮组织和导管组织之间的根茎中的组织区美国传统〔endodermis〕The innermost layer of the cortex that forms a sheath around the vascular tissue of roots and some stems.内皮层:皮层的最内层,在根、茎的导管组织周围形成一道叶鞘(茎衣)美国传统 |